Main Material Input and Output Essay Example | Topics and Well Written Essays - 250 words

Main Material Input and Output - Essay Example As well, this paper names and discusses three potential P2 opportunities for the industry. In the metallurgical industry particles are emitted in production that â€Å"†¦may contain lead, mercury, and other heavy metals† (Cheremisinoff, 2001, 33). For example, coke production involves volatile components. In the US, in the iron and steel industry, coke is used in what is termed the byproduct coke process, that is, byproduct coke ovens are used and the high heat releases comppounds such as benzene, butane, hydrogen cyanide, and propane. The P2 opportunity that this presents is by use of the Maximum Achievable Control Technology (MACT) Standard will help in the reduction of charging and leaking emissions by some two-thirds and bypass/bleeder stacks by ninty-eight percent (Marsosudiro, 2014, 2-3). Another potential P2 opportunity is also in the use of ironmaking technology, that is, direct reduction ironmaking (DRI) as well as pulverized coal injection (PCI). These two proce sses can reduce the use of coal in ironmaking (Marsosudiro, 2014, 5). Other processes that can assist in pollution prevention are natural gas injection, which can replace up to 25% of coal use, as well as oil injection (Marsosudiro, 2014, 6). Marsosudiro, P. (2014). Pollution Prevention in the Integrated Iron and Steel Industry and its Potential Role in MACT Standards Development . Retrieved from P2 Infohouse: A Comprehensive Pollution Prevention Reference Collection:

Great Depression in America Coursework Example | Topics and Well Written Essays - 2000 words

Great Depression in America - Coursework Example The basic cause of the Great Depression was a drop in aggregate demand, which led to a decrease in output as producers as well as merchandisers observed an unplanned increase in inventories. The sources of the reduction in spending differed during the course of the Depression, however, they cumulated into a massive drop in aggregate demand. During the Depression itself, different factions gave explanations regarding the catastrophe that goes contentedly with their personal interests. The Hoover management held global fiscal forces responsible and sought to â€Å"stabilize world currencies and debt structures†. ‘New Dealers’, aimed at finding a domestic solution to the catastrophe, said that the Depression was a calamity of ‘under-utilization’, that low earnings and high costs had made it extremely complicated to acquire the commodities of the industrial financial system; and that a shortage of demand had caused the financial slump.One of the earliest significant post-war explanations came was given by economists ‘Milton Friedman’ and ‘Anna Schwartz’, in their ‘Monetary History of the United States (1963)’. They argued about what has identified as the ‘economic interpretation’. Hey claimed that Great Depression was caused by a ‘radical contraction of the currency’ (Rothbard, 2011, p. 103). This argument goes well with the ideas that Milton Friedman has supported for several years.